Home / 53,665.74-80,556.93-45,384.30

Finding the Fourth Proportional to 53,665.74, 80,556.93 and 45,384.30

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Solution

The fourth proportional to 53,665.74, 80,556.93 and 45,384.30 is: 68,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.74 : 80,556.93 = 45,384.30 : x
  2. Step 2: Convert to fraction form
    53,665.74/80,556.93 = 45,384.30/x
  3. Step 3: Cross multiply
    53,665.74x = 80,556.93 × 45,384.30
  4. Step 4: Simplify right side
    53,665.74x = 3,656,019,878.20
  5. Step 5: Solve for x
    x = 3,656,019,878.20/53,665.74
  6. Step 6: Final answer
    x = 68,125.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.